1019494368 has 72 divisors (see below), whose sum is σ = 2935951200. Its totient is φ = 335522304.

The previous prime is 1019494349. The next prime is 1019494373. The reversal of 1019494368 is 8634949101.

1019494368 is a `hidden beast` number, since 10 + 194 + 94 + 368 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348 + ... + 45156.

It is an arithmetic number, because the mean of its divisors is an integer number (40777100).

Almost surely, 2^1019494368 is an apocalyptic number.

1019494368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1019494368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467975600).

1019494368 is an abundant number, since it is smaller than the sum of its proper divisors (1916456832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1019494368 is a wasteful number, since it uses less digits than its factorization.

1019494368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44904 (or 44893 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 1019494368 is about 31929.5218880584. The cubic root of 1019494368 is about 1006.4563485207.

The spelling of 1019494368 in words is "one billion, nineteen million, four hundred ninety-four thousand, three hundred sixty-eight".